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    <h1>数据可视化-ECharts 虚拟数据</h1>
    <div class="showTime">当前时间：2020年8月<span></span></div>
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        <h2>
          柱状图-各行业程序员数量 <a href="javascript:;">2019</a>
          <a href="javacript:;"> 2020</a>
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        <h2>折线图-学习变化</h2>
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        <h2>饼形图-工程师年龄分布</h2>
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            <li>125811</li>
            <li>104563</li>
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            <li>程序员需求人数</li>
            <li>程序员供应人数</li>
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        <h2>柱状图-开发技能</h2>
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        <h2>折线图-公司人员流动</h2>
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        <h2>饼形图-各地区程序员占比</h2>
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